Re: shrinking the desktop DVD image to 1.5GB

2011-08-12 Thread Allison Randal
I drafted an initial seed set for a 1.5GB image. As suggested here on 
the list, it's an extension of the CD image, including full language 
packs and additional common applications.


Of the additional applications that people suggested here on the list, 4 
are not included, because they're universe packages rather than main. If 
there's sufficient demand, we could promote some of them next cycle, but 
they aren't particularly critical, so not worth MIRs at this point.


audacity
anjuta
wesnoth
frozen-bubble

Any suggestions on other games, developer tools, audio utilities or 
common applications in main to include?


Allison

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Re: shrinking the desktop DVD image to 1.5GB

2011-08-12 Thread Jorge O. Castro
On Fri, Aug 12, 2011 at 8:42 AM, Allison Randal alli...@canonical.com wrote:
 Any suggestions on other games, developer tools, audio utilities or common
 applications in main to include?

I would be great to include the parts of Samba that Nautilus uses for
Windows file sharing. On a stock install it's a prompt to install the
rest of it and then you have to log out and back in before being able
to share a folder.

(Also, full vim! :D)

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-14 Thread Colin Watson
On Thu, Jun 09, 2011 at 07:21:48AM +0200, Martin Pitt wrote:
 I. e. we should remove the alternate/server parts and the pool, and
 try to find a solution in ubiquity to remove the unnecessary langpacks
 from the live system wholesale without having to wait for half an hour
 in ubiquity.  That will get a bit hackish, but we know what langpacks
 look like, so skipping the unneeded /usr/share/locale-langpack/...
 files during copying and doing some careful dpkg brain surgery
 might do the trick (perhaps purging is even fast enough if there
 aren't any files from the package left?).

The hack you describe is already pretty much what we do in ubiquity.
See https://blueprints.launchpad.net/ubuntu/+spec/dvd-performance-hacks.

In the case where the package has a prerm, we determined that this hack
was unsafe (or at least not provably safe).  It is often possible to
speed things up without needing to change ubiquity by converting
packages to avoid prerms (e.g. using triggers).

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-10 Thread Phillip Susi
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On 06/09/2011 08:03 PM, Stéphane Graber wrote:
 Indeed, not sure what we should do to avoid that.
 A workaround would be to bump the minimal RAM requirement for install by
 whatever the biggest langpack needs (50MB ?). Or alternatively, detect
 that we won't have enough RAM and just not install the langpack in such
 case.

I think that the ideal solution is to have a fuse-archive type mount
that allows the langpack debs to be mounted and overlaid in the live fs
as if they were installed, but that would require some more work.
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Re: shrinking the desktop DVD image to 1.5GB

2011-06-10 Thread Phillip Susi
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On 06/09/2011 09:33 AM, Stéphane Graber wrote:
 What currently takes a really long time (around 30 minutes on a 45
 minutes install for me) is the purging of the langpacks and their
 dependencies, mostly:

Indeed, there is no way dpkg should take 30 minutes to purge the
packages.  This seems to be a serious performance problem in dpkg.
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Re: shrinking the desktop DVD image to 1.5GB

2011-06-10 Thread Phillip Susi
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On 06/09/2011 03:02 PM, Steve Langasek wrote:
 Is the RAM actually a problem in practice?  I probably don't understand the
 squashfs / aufs architecture well enough; I assumed that the RAM
 requirements for this were already quite high and that adding a langpack to
 the overlay would have no major impact.

If the packages are installed on demand, then the files are extracted
and copied to a tmpfs, taking up quite a bit of ram.

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Didier Roche
On mer., 2011-06-08 at 16:55 -0700, Bryce Harrington wrote:
 
  - What should we cut from the current DVD image (currently a superset of
  desktop, alternate, and server)? Or, perhaps more simply, what would be
  worth adding beyond the current 700MB CD image?
 
 If we have the machinery to produce language-specific CDs, could that
 same machinery be used to produce language-specific USB isos?  If so,
 then only one language per image is necessary.  Looks like that'd give
 back a lot of space.

I don't think we should do that for USB isos. That adds iso QA, space
required on mirrors in addition to people downloading the wrong image
(and maybe a ETOOMUCHCHOICE?)

language-specific CDs is one step ahead and we will see how this scale
with disk space, iso QA and loco providing their default, but I don't
think we should rush in language-specific USB isos.

Didier


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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Matt Zimmerman
On Wed, Jun 08, 2011 at 03:50:30PM -0700, Allison Randal wrote:
 At UDS-O, we discussed CD space again (as at many a past UDS). Colin has
 nicely summarized the discussion:
 
 https://wiki.ubuntu.com/FoundationsTeam/Specs/OneiricCDSizing
 
 Following on the tail of this, a few of us have been talking more about
 the idea of shrinking the 4.3GB DVD image down to a 1.5GB flash card/USB
 stick/DVD image. It's looking interesting enough to be worth talking
 about it more broadly.

Love it.

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread James Westby
On Wed, 08 Jun 2011 15:50:30 -0700, Allison Randal alli...@canonical.com 
wrote:
 - What should we cut from the current DVD image (currently a superset of
 desktop, alternate, and server)? Or, perhaps more simply, what would be
 worth adding beyond the current 700MB CD image?

Does the DVD install extra stuff than the CD if you install a desktop?

I think we should be careful of diluting the experience is by providing
alternatives to packages on the CD (e.g. providing Thunderbird if
evolution is still the default.)

I also think that it would be good to have a metapackage to install the
extra packages if you install from the CD first, like the kubuntu-full
package that Scott mentions.

Looking at what I have installed that isn't default, I would suggest

  * inkscape
  * gimp
  * frozen-bubble

The other things probably aren't appropriate (wireshark?)

Thanks,

James


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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Steve Langasek
On Thu, Jun 09, 2011 at 07:23:31AM +0200, Martin Pitt wrote:
 Phillip Susi [2011-06-08 21:52 -0400]:
  One thing that would be nice to fix with the existing DVD image is the
  waste of space it has from duplicating the language packs both as
  packages in the pool, and being installed in the sqashfs live image,
  which is MUCH larger than the one on the livecd.

 I agree, duplicating them is a hideous waste.

  It seems like the language packs should only be included in the
  pool, not the squashfs image, and installed on demand.

 I disagree. They should only be in the squashfs image, so that you can
 actually _use_ the live system in your local language. 

Is there any reason that they have to be in the squashfs image to get that
effect?  I know that's how it's architected today, but would it actually be
a better experience to have a much smaller squashfs that needs to be
unpacked, to which the correct language pack is applied on-the-fly as soon
as we know what language the user has selected?

Cons:
 - have to wait for apt before starting the login session or ubiquity
 - new code has to be written
Pros:
 - shorter livefs build time
 - shorter install time
 - potentially *reusable* squashfs image, that can be extended for new
   locales just by dropping it on a new ISO including a different package
   repo

Is this worth exploring?

-- 
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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Martin Pitt
Steve Langasek [2011-06-09 10:49 -0700]:
 Is there any reason that they have to be in the squashfs image to get that
 effect?  I know that's how it's architected today, but would it actually be
 a better experience to have a much smaller squashfs that needs to be
 unpacked, to which the correct language pack is applied on-the-fly as soon
 as we know what language the user has selected?

At least the user wouldn't notice it, if casper would just DTRT
according to the selected locale. The main drawback that I see is that
it will take quite some RAM (magnitude of 40 MB for a well-translated
language) in the live system. The unpack time is certainly not a
biggie.

Martin

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Steve Langasek
On Thu, Jun 09, 2011 at 08:36:30PM +0200, Martin Pitt wrote:
 Steve Langasek [2011-06-09 10:49 -0700]:
  Is there any reason that they have to be in the squashfs image to get that
  effect?  I know that's how it's architected today, but would it actually be
  a better experience to have a much smaller squashfs that needs to be
  unpacked, to which the correct language pack is applied on-the-fly as soon
  as we know what language the user has selected?

 At least the user wouldn't notice it, if casper would just DTRT
 according to the selected locale. The main drawback that I see is that
 it will take quite some RAM (magnitude of 40 MB for a well-translated
 language) in the live system. The unpack time is certainly not a
 biggie.

Is the RAM actually a problem in practice?  I probably don't understand the
squashfs / aufs architecture well enough; I assumed that the RAM
requirements for this were already quite high and that adding a langpack to
the overlay would have no major impact.

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Debian Developer   to set it on, and I can move the world.
Ubuntu Developerhttp://www.debian.org/
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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Steve Langasek
On Thu, Jun 09, 2011 at 06:51:27PM -0400, Stéphane Graber wrote:
  I wouldn't like this to result in any additional prompts; we should be able
  to auto-install these for the user based on their language selection in
  either the bootloader (in which case casper can do the setup), or in
  ubiquity-dm.

 Yeah, I don't plan on prompting the user for their language again, the
 prompt would be to give a chance for low-memory users to opt-out of the
 additional memory usage.

 As in my experience, it's really easy to trigger out-of-memory kills in
 the live environment by installing just a few megs of packages.

Ah; that's not a very nice choice to present the user with then.  Would you
like to run in a language you don't speak very well, or would you like an
OOM?

:/

-- 
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Debian Developer   to set it on, and I can move the world.
Ubuntu Developerhttp://www.debian.org/
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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Stéphane Graber
On Thu, 2011-06-09 at 16:25 -0700, Steve Langasek wrote:
 On Thu, Jun 09, 2011 at 06:51:27PM -0400, Stéphane Graber wrote:
   I wouldn't like this to result in any additional prompts; we should be 
   able
   to auto-install these for the user based on their language selection in
   either the bootloader (in which case casper can do the setup), or in
   ubiquity-dm.
 
  Yeah, I don't plan on prompting the user for their language again, the
  prompt would be to give a chance for low-memory users to opt-out of the
  additional memory usage.
 
  As in my experience, it's really easy to trigger out-of-memory kills in
  the live environment by installing just a few megs of packages.
 
 Ah; that's not a very nice choice to present the user with then.  Would you
 like to run in a language you don't speak very well, or would you like an
 OOM?
 
 :/

Indeed, not sure what we should do to avoid that.
A workaround would be to bump the minimal RAM requirement for install by
whatever the biggest langpack needs (50MB ?). Or alternatively, detect
that we won't have enough RAM and just not install the langpack in such
case.


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Re: shrinking the desktop DVD image to 1.5GB

2011-06-09 Thread Martin Pitt
Stéphane Graber [2011-06-09 20:03 -0400]:
 Indeed, not sure what we should do to avoid that.
 A workaround would be to bump the minimal RAM requirement for install by
 whatever the biggest langpack needs (50MB ?). Or alternatively, detect
 that we won't have enough RAM and just not install the langpack in such
 case.

I think that's a better approach indeed. A threshold of 1 GB seems
appropriate for this? Then we could just do it in casper.

Thanks,

Martin
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Re: shrinking the desktop DVD image to 1.5GB

2011-06-08 Thread Bryce Harrington
On Wed, Jun 08, 2011 at 03:50:30PM -0700, Allison Randal wrote:
 Following on the tail of this, a few of us have been talking more about
 the idea of shrinking the 4.3GB DVD image down to a 1.5GB flash card/USB
 stick/DVD image. It's looking interesting enough to be worth talking
 about it more broadly.
 
 - Does a 1.5GB image sound useful?

It does.  It's only double the size of the CD iso, rather than six times
as is the case with the regular DVD, so an easier download proposition.

 - 1.5GB is what we keep coming back to, because it's a nice size to fit
 on a cheap 2GB flash card/USB stick with room for formatting and
 persistent data storage. It's about double the size of the current CD
 image, which allows plenty of room for a generous desktop image, without
 the painfully large download of the 4.3GB image. What other size
 considerations come to mind?

I think the download bandwidth is probably the more important factor
here.  $5 will get a 2GB usb drive today; next year the same amount will
probably get a 4 or 8GB drive.  Year after that you probably won't be
able to even find 2GB drives.

So, you probably don't need to be as strict about the size limit over
time, the way we have to be for CDs.

 - What should we cut from the current DVD image (currently a superset of
 desktop, alternate, and server)? Or, perhaps more simply, what would be
 worth adding beyond the current 700MB CD image?

If we have the machinery to produce language-specific CDs, could that
same machinery be used to produce language-specific USB isos?  If so,
then only one language per image is necessary.  Looks like that'd give
back a lot of space.

Would be nice to see a diff of the DVD manifest vs. CD, with package
sizes, so we can see what packages would give back the most space to
drop.

As far as stuff worth adding, maybe look first at apps we've had to drop
like gimp and various office tools.  A few more games might be nice.
I'd love to see Inkscape included.  What about frequently needed
proprietary codecs or drivers?

Bryce

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-08 Thread Scott Kitterman
On Wednesday, June 08, 2011 06:50:30 PM Allison Randal wrote:
 At UDS-O, we discussed CD space again (as at many a past UDS). Colin has
 nicely summarized the discussion:
 
 https://wiki.ubuntu.com/FoundationsTeam/Specs/OneiricCDSizing
 
 Following on the tail of this, a few of us have been talking more about
 the idea of shrinking the 4.3GB DVD image down to a 1.5GB flash card/USB
 stick/DVD image. It's looking interesting enough to be worth talking
 about it more broadly.
 
 Ubuntu desktop will be sticking with the ~700MB image size in Oneiric
 (see the wiki page for details), so this isn't about reopening that
 discussion or about fitting things on the 700MB image.
 
 A few questions:
 
 - Does a 1.5GB image sound useful?
 
 - 1.5GB is what we keep coming back to, because it's a nice size to fit
 on a cheap 2GB flash card/USB stick with room for formatting and
 persistent data storage. It's about double the size of the current CD
 image, which allows plenty of room for a generous desktop image, without
 the painfully large download of the 4.3GB image. What other size
 considerations come to mind?
 
 - What should we cut from the current DVD image (currently a superset of
 desktop, alternate, and server)? Or, perhaps more simply, what would be
 worth adding beyond the current 700MB CD image?
 
 Allison

For Kubuntu we changed our DVD image in Natty to also provide a metapackage 
(kubuntu-full) that was meant to give a broader KDE experience than can be 
shoved into 700MB (things like Digikam, Koffice (this will be Calligra in 
Oneiric), etc.)  For Oneiric it's our intent to not releasee a CD sized 
alternate to reduce ISO QA requirements, so having the alternate installer 
available on the DVD is important (as are some other planned changes to reduce 
the number of use cases the live installer won't support).  As a result, I 
don't think the smaller DVD is very interesting for Kubuntu, so even if Ubuntu 
moves to the smaller size, please preserve the capability to retain the 
current image sizes.

Scott K

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-08 Thread Phillip Susi
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On 06/08/2011 06:50 PM, Allison Randal wrote:
 Following on the tail of this, a few of us have been talking more about
 the idea of shrinking the 4.3GB DVD image down to a 1.5GB flash card/USB
 stick/DVD image. It's looking interesting enough to be worth talking
 about it more broadly.

Do you mean creating a new image in between the dvd and cd, or replacing
the dvd image?  I hope the former.  I find the DVD image handy because
you can still boot it as a livecd, and install using the GUI installer,
but also fall back to the alternate for server or other advanced
installs, or if the gui installer has problems, and even use it to
upgrade an existing system ( or several ) without having to download all
of the packages.

 - What should we cut from the current DVD image (currently a superset of
 desktop, alternate, and server)? Or, perhaps more simply, what would be
 worth adding beyond the current 700MB CD image?

One thing that would be nice to fix with the existing DVD image is the
waste of space it has from duplicating the language packs both as
packages in the pool, and being installed in the sqashfs live image,
which is MUCH larger than the one on the livecd.  It seems like the
language packs should only be included in the pool, not the squashfs
image, and installed on demand.  This also adds to the installation time
significantly ( like 400% increase - it is ridiculous ) since it has to
remove all of the language packs from the target system after copying
the squashfs.
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Re: shrinking the desktop DVD image to 1.5GB

2011-06-08 Thread Martin Owens
On Wed, 2011-06-08 at 16:55 -0700, Bryce Harrington wrote:
 As far as stuff worth adding, maybe look first at apps we've had to
 drop
 like gimp and various office tools.  A few more games might be nice.
 I'd love to see Inkscape included.

A sort of maker of things collection? Inkscape, Gimp, Audacity and
Pitivi?

 What about frequently needed
 proprietary codecs or drivers? 

We don't have any proprietary codecs, the need for w32codecs package is
basically gone with the more capable ffmpeg and gstreamer plugins. All
the codec stuff off disc because of patent fears, nothing concrete, just
a fear that Canonical would be liable from patent attacks.

Although including libdvdcss is a funny one since no company will go
anywhere near it, it's a criminal offense with 20 years in jail as far
as I remember. DMCA is a nasty bit of work when it comes to breaking
encryption.

The only other things in the restricted extras which _are_ proprietary
are the ms fonts and flash. I struggle to find a real reason to include
either one.

Martin,


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Re: shrinking the desktop DVD image to 1.5GB

2011-06-08 Thread Martin Pitt
Allison Randal [2011-06-08 15:50 -0700]:
 - Does a 1.5GB image sound useful?

For me, it's basically the difference between useless hog (it's
simply not worth downloading 4.5 GB and then finding a large enough
USB stick just to get three extra packages), and very nice for
carrying around with you to get a larger set of applications, and 1.5
GB is a bearable download even with slower DSL links.

 - 1.5GB is what we keep coming back to, because it's a nice size to fit
 on a cheap 2GB flash card/USB stick with room for formatting and
 persistent data storage.

I agree. Also, as Bryce said, this isn't a physical limit, so we could
e. g. increase it by 10% each year.

 - What should we cut from the current DVD image (currently a superset of
 desktop, alternate, and server)? Or, perhaps more simply, what would be
 worth adding beyond the current 700MB CD image?

My preference would be to turn it into a large desktop CD.

I. e. we should remove the alternate/server parts and the pool, and
try to find a solution in ubiquity to remove the unnecessary langpacks
from the live system wholesale without having to wait for half an hour
in ubiquity.  That will get a bit hackish, but we know what langpacks
look like, so skipping the unneeded /usr/share/locale-langpack/...
files during copying and doing some careful dpkg brain surgery
might do the trick (perhaps purging is even fast enough if there
aren't any files from the package left?).

So from my side the DVD would be useful with better i18n support (just
the translations, not all the extra dictionaries etc.) and with the
featured applications that we have in the software-center, such as
GIMP, Inkscape, the full LibO, developer tools (devhelp/anjuta/etc.).
Some top-notch free games in the leagure of Wesnoth and frozen bubble
would also be nice IMHO.

Martin

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Re: shrinking the desktop DVD image to 1.5GB

2011-06-08 Thread Martin Pitt
Phillip Susi [2011-06-08 21:52 -0400]:
 One thing that would be nice to fix with the existing DVD image is the
 waste of space it has from duplicating the language packs both as
 packages in the pool, and being installed in the sqashfs live image,
 which is MUCH larger than the one on the livecd.

I agree, duplicating them is a hideous waste.

 It seems like the language packs should only be included in the
 pool, not the squashfs image, and installed on demand.

I disagree. They should only be in the squashfs image, so that you can
actually _use_ the live system in your local language. 

 This also adds to the installation time significantly ( like 400%
 increase - it is ridiculous ) since it has to remove all of the
 language packs from the target system after copying the squashfs.

That's right, but I'd rather fix that. ubiquity could skip
/usr/share/locale-langpack/[everything but the selected locale]/
during copy, then it should be a lot faster?

Martin

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Martin Pitt| http://www.piware.de
Ubuntu Developer (www.ubuntu.com)  | Debian Developer  (www.debian.org)

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